Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 412 [Rate centres in NPA 412] [Dial plan for NPA 412]

NXX: 646

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-646 A Pittsburgh Suburban Zone 22 PA PITBPAIW0MD  318J COMCAST IP PHONE, LLC 234      
412-646 0 Pittsburgh Suburban Zone 22 PA PITBPADTXFX  624H ONVOY SPECTRUM, LLC 234   2021-11-20   
412-646 1 Pittsburgh Suburban Zone 22 PA PITBPAIW0MD  318J COMCAST IP PHONE, LLC 234      
412-646 2 Pittsburgh Suburban Zone 22 PA PITBPAIW0MD  318J COMCAST IP PHONE, LLC 234      
412-646 3 Pittsburgh Suburban Zone 22 PA   3806 CORE COMMUNICATIONS, INC. - PA 234   2019-03-27   
412-646 4 Pittsburgh Suburban Zone 22 PA PITBPAIW0MD  318J COMCAST IP PHONE, LLC 234   2009-03-27   
412-646 5 Pittsburgh Suburban Zone 22 PA PITBPAIW0MD  318J COMCAST IP PHONE, LLC 234   2016-04-18   
412-646 6 Pittsburgh Suburban Zone 22 PA PITBPADTX2Z  002F BANDWIDTH.COM CLEC, LLC - PA 234   2018-03-15   
412-646 7 Pittsburgh Suburban Zone 22 PA   3806 CORE COMMUNICATIONS, INC. - PA 234   2018-10-24   
412-646 8 Pittsburgh Suburban Zone 22 PA   515J IP HORIZON LLC 234   2016-05-21   
412-646 9 Pittsburgh Suburban Zone 22 PA PITBPADTXFX  624H ONVOY SPECTRUM, LLC 234   2021-11-20   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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